Nonlinear frequency conversion in one dimensional lithium niobate photonic crystal nanocavities

We demonstrate flexible nonlinear frequency up-conversion in high-Q lithium niobate photonic crystal nanobeam resonators. The high optical Q together with strong optical mode confinement allows us to observe clear second harmonic generation and sum frequency generation with an optical power around o...

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Published inApplied physics letters Vol. 113; no. 2
Main Authors Jiang, Haowei, Liang, Hanxiao, Luo, Rui, Chen, Xianfeng, Chen, Yuping, Lin, Qiang
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 09.07.2018
Subjects
Applied physics
Lithium niobates
Photonic crystals
Quantum theory
Second harmonic generation
Upconversion
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Summary:We demonstrate flexible nonlinear frequency up-conversion in high-Q lithium niobate photonic crystal nanobeam resonators. The high optical Q together with strong optical mode confinement allows us to observe clear second harmonic generation and sum frequency generation with an optical power around only tens of microWatts. These demonstrations show that high-Q lithium niobate photonic crystal nanoresonators are of great promise for nonlinear photonic applications.
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ISSN:0003-6951
1077-3118
DOI:10.1063/1.5039948